Current Electricity

Related Questions

• The resistance of a 5 cm long wire is 10 ohm. It is uniformly stretched so that its length becomes 20 cm. The resistance of the wire is

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• The ammeter A reads 2 A and the voltmeter V reads 20 V. the value of resistance R is (Assuming finite resistance's of ammeter and voltmeter)

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• The fact that the conductance of some metals rises to infinity at some temperature below a few Kelvin is called

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• Two bulbs X and Y having same voltage rating and of power 40 watt and 60 watt respectively are connected in series across a potential difference of 300 volt, then

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• All of the following statements are true except

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